Home / 785.64-1,084.62-524

Finding the Fourth Proportional to 785.64, 1,084.62 and 524

Calculator

Solution

The fourth proportional to 785.64, 1,084.62 and 524 is: 723.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    785.64 : 1,084.62 = 524 : x
  2. Step 2: Convert to fraction form
    785.64/1,084.62 = 524/x
  3. Step 3: Cross multiply
    785.64x = 1,084.62 × 524
  4. Step 4: Simplify right side
    785.64x = 568,340.88
  5. Step 5: Solve for x
    x = 568,340.88/785.64
  6. Step 6: Final answer
    x = 723.41

Related Problems

Find fourth proportional to 392.82, 542.31 and 262
Half scale
Find fourth proportional to 1,571.28, 2,169.24 and 1,048
Double scale
Find fourth proportional to 786.64, 1,086 and 525
Similar ratio
Find fourth proportional to 1,178.46, 1,626.93 and 786
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.